[Lance Bachelder]"Vegas has had this for over 10 years and I use it all the time - Adobe just added this to CS6."

Actually, grouping is in CS5.5 as well. It's a useful feature and something I've always missed in FCP.

A couple ideas that would make it even better:

1) some sort of auto-coloring to make groups stand out visually.

2) if they could implement some sort of object collision avoidance behavior (i.e. automatically jumping tracks over or under existing clips while being slid along the timeline – at the editor's discretion – then I think you'd get the best of both tracked and trackless worlds. It would give you the flexibility of connected clips without the limitations.